AF9ZP0BA - EPS-ACW REACH TRUCK - User Manual
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8 FUNCTIONS OF THE EPS-ACW
The epsacW controls the steer function of a warehouse truck in manual mode
only.
8.1 Manual Mode Steering
Manual mode steering requires a command sensor in the steering wheel. This
manual deals with an Open Loop mode steering system. Open Loop mode
consists of a speed control: the steering motor is driven to a speed proportional
to the speed of the steering wheel. So it is necessary to use a multiturn steering
wheel without any mechanical limitation (no strokes).
With a Multiturn steering wheel, the sensor in the steering-wheel shall be a
stepper motor used as a tacho-generator (see Figure 8.1-1). Then the control will
turn the steering motor moving at a speed proportional to the stepper motor
speed (Open loop Mode).
Stepper Motor
Figure 8.1-1
